Edit:
Unfortunately it looks like the following procedure is just a temporary fix. After some time the dialog started appearing again. Repeating the procedure fixes it for an additional period of time.
I had the same problem and what helped in my case was disabling and then re-enabling microphone permissions in the the Simulator.
Steps to fix:
- go to Settings app in the Simulator
- find your app settings page within the Settings app
- disable microphone permission (or any other permission that is causing trouble)
- re-enable microphone permissions
After this procedure, the microphone permissions dialog stopped appearing every time I would run the app.
Note that I did run the app with the permissions disabled and navigated to the point where permissions are required before re-enabling them (but I don't think that's required).
Hope this helps, it did in my case.